PS263 Lecture : The Visual System.docx
Document Summary
Duality of light: light is a wave and a particle. All the radiation in the world different frequencies. Some people can detect some light in the infrared system or the ultraviolet spectrum: they are able to see the light, heat, radiating off of individuals. How much of the particles are impinging on you speaks to the brightness, how fast the wave is moving is the colour. Diagram of the human eye the back of the eye is where the retina is located. When you see something in the environment, it appears on your retina as upside down and left to right. Myopia: if you have a lens or shape of the eyeball that, for some reason, converges light before reaching the retina, this makes the focus blurry, this is near sightedness. Hyperopia: the light rays converge at a point after the retina and are unfocused, this is farsightedness.
